All-Wheel Drive
When to Check Lubricant
It is not necessary to regularly check fluid unless you suspect there is a leak or you hear an unusual noise. A fluid loss could indicate a problem. Have it inspected and repaired.
How to Check Lubricant

To get an accurate reading, the vehicle should be on a level surface.
If the level is below the bottom of the filler plug hole, located on the transfer case, you’ll need to add some lubricant. Add enough lubricant to raise the level to the bottom of the filler plug hole.
Use care not to overtighten the plug.
What to Use
To determine what kind of lubricant to use.
See also:
Lane Departure Warning (LDW)
The vehicle may have a Lane Departure Warning (LDW)
system. Read this entire section before using the system.
WARNING:
The Lane Departure Warning (LDW) system does
not steer the vehicle and is o ...
Gasoline Octane
If the vehicle has the 3.9L V6 engine (VIN Code 1) or the
3.9L V6 engine (VIN Code M), use regular unleaded
gasoline with a posted octane rating of 87 or higher. If the
octane rating is less tha ...
Driving On Grades
Reduce speed and shift to a lower gear before starting down a
long or steep downgrade. If the transmission is not shifted down, the brakes might
have to be used so much that they would get hot and ...
